Combined type-writing and computing machine.



W. WRIGHT.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY I5, 1912. I

Patented Oct. 22, 1918.

UNITED STATES PATENT OFFICE.

WALTER WRIGHT, OF'NEW YORK, N. Y., ASSIGNOR TO UNDERWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Oct. 22, 1918.

Application filed May 15, 1912. Serial No. 697,410.

To all whom it may concern:

Be it known that I, IVALTER WRIGHT, a citizen of the United States, residing in New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Combined Type-WVriting and'Computing Machines, of

which the following is a specification.

This invention relates to a totalizer carriage for adjustably supporting one or more totalizers or computing heads, so as to be movable with the typewriter carriage and relatii e to the master wheel.

In certain types of combined typewriting and computing machine, such as that described in my application No. 679,851, filed February 26, 1912, the master wheel which successively operates eachone of a series of computing wheels in one or more totalizers is stationary while the totalizers move. The movement of the total-izers is obtained by connecting them to the typewriter carriage.

In this case a sub-carriage, for convenience called the totalizer carriage, is connected to move with the typewriter carriage. This totalizer carriage is provided with a clamp whereby one or more totalizers can be secured to the totalizer-carriage in such a manner that they can be readily snapped on or off, without sliding them to the end of the clamp, and also so that they can be adjusted along the sub-carriage to vary their position relative to the typewriter carriage, whereby the computing wheels therein'can be made to correspond with any groupofletter-spaccs on .the worksheet on the carriage. This enables the totalizers to be adjusted to correspond with a change in the position of a column of numbers to be computed.

In order to secure an accurate adjustment, whereby the computing wheels correspond exactly to the letter-spaces, the sub-carriage is provided with a rack, the teeth of which are located at letter-space intervals from each other.

Each of the totalizers is provided with one or more teeth which are adapted to engage in the spaces between the teeth of the rack to determine the adjusted positions of the totalizers.

The clamp, shown for securing the totalizers to the sub-carriage is of the spreading type having elongated jaws, one fixed and the other movable. The jaws may be jammed into a dove-tailed groove in each totalizer. The-movable jaw is controlled by the opposed action of a spring and cam.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a fragmentary view in front elevation, partly broken away to show the underlying structure.

Fig.2 is a contracted detail view showing the sub-carriage and its connection to the guide therefor.

Fig. 3 is a fragmentary perspective view of the movable jaw of the clamp.

Fig. 4 is a fragmentary view, partly in section from front to rear, showing the connection of one of the totalizers to the sub-carriage.

Referring more particularly to the separate parts of this invention as embodied in the form shown in the drawings, 1 indicates the typewriter carriage which is supported for longitudinal movement on the typewriter frame 2 in the usual manner. Connected to the typewriter carriage 1 so as to move therewith, in any suitable manner, as by means of a bracket 3, there is provided a sub-carriage 4 which, for the purpose of distinction, may be called a totalizer carriage, in that it is adapted to support one or more totalizers or computing heads The purpose of mounting the totalizers on the subcarriage 4 so that they will move with the typewriter carriage 1, is to bring each of a series of computing wheels or gears G succcssiv e ly into mesh with a master wheel 7, which is rotated variable amounts according to the particular numeral keys struck by the typewriter.

The arrangement for rotating the master wheel may be of any suitable character, such as that described in my application above mentioned. a

For the purpose of supporting the totalizer carriage 4:, there is provided a guide 8 which is shown in the form of a bracket mounted on the front of the frame 2 and provided with ways 9 into which extend rails 10 bent so as to secure the carriage'ifa to the guide. In other words, it may be" said that the rails 10 form with the portions of the guide 8. which form the ways 9, interlocking joints which permit a longitudinal sliding movement of the carriage 4, and yet prevent the carriage from moving transversely.

The sub-carriage 4 is provided with a body portion shown in the form of an elongated plate 11, on which a clamp 12 is mounted which secures the totalizers 5 to the sub-carri'age 4. The clamp 12, in this instance, is

shown to comprise a pair of jaws 13 and 14,

jaw 14 will also cause a transverse movement, so that the jaw 14 moves away from the jaw 13, therebv eflecting a spreading action.

Each of the totalizers is provided with a dovetailed socket or groove 17, into which the jaws extend. It will be readily seen that when the jaws 13 and 14 are spread apart, in view of the fact that these jaws are provided with beveled faces to engage the beveled faces of the top and bottom margins of the groove 17, the totalizers will be locked in position on the sub-carriage 4.

To effect the spread action, that is to say, to efiect a combined longitudinal and transverse movement of the jaw 14, there is provided a cam lever 18 which is pivotally mounted intermediate itsends and provided with a cam 19, which engages one end of the jaw 14 to move it against the tension of a spring 20 which is secured at one end to the jaw 14, and at the other end to the body portion 11 of the carriage 4. In this instance, the spring is shown normally tending to lease the jaw 14 from its clamping position, that is to say, to bring it closer to the jaw 13 while the cam 19 is shown as effecting the clamping action. It may be readily seen, however, that the action could be reversed with the spring effecting the clamping action, and with the cam lever eflecting the unclamping action.

While the clamp 12 will secure the totalizers in any position along the sub-carriage 4, it is advisable to determine the positions of the totalizers so that the computing wheels or gears 6 will be brou ht in exact register with the master wheel during the successive step-by-step movements of the carriage 1. For this purpose the sub-carriage 4 has formed on its lower edge a rack 21.

' the distance between the center lines of the spaces between the teeth of which is equal to the distance between successive letterspaces as determined by the letter-space movement of the typewriter carriage 1.

Each of the totalizers 5 is provided with one or more teeth 22 which are adapted to engage the spaces between the teeth of the rack 21, so as to justify the-position of the totalizers on the carriage 4.

.Each of the totalizers may also be provided with an overhanging ledge 23, which engages the top of the body portion 11 of the ca'rria e 4 to prevent the totalizers falling from t 1e sub-carriage when the clamp is manipulated to its releasing condition.

It will thus be seen that there is provided a simple andeflicient means, whereby one or more totalizers canbe .moved along step by step with the typewriter carriage, and yet can 'be easily adjusted relative thereto, so as to vary the position of the totalizer to correspond with the positions of the column to be computed, which is being typewritten on the worksheet on the typewriter carriage.

It will be seen that the rack and tooth connection of the totalizers with the sub-carriage enables the totalizers to be accurately setv at letter-space intervals along the subcarriage, whereby the register of the computing wheel 6 with the master wheel 7 will be assured. At the same time if the totalizer is properly positioned with reference to the teeth of the rack 21, it can be directly applied to the clamp, without sliding it on from the end of its support. The result is that additional intermediate totalizers can be placed at any time without disturbing the adjustment of any already in position.

Variations may be resorted to within the scope of the invention, and portions of the improvements tmay be used without others.

Having thus described my invention, I claim 1. The combination with a typewriter carriage, of a sub-carriage connected thereto, an elongated clamp on said sub-carriage, one or more totalizers or computing heads mounted on said sub-carriage, and a spring and calm working in opposition to each other said totalizer carriage, a guid for said total-.

izer carriage, rails on said totalizer carriage engaging said guide, and one or more total- 7 izers adjustably mounted along said clam p.

4. The combinationwith a typewriter carriage, of a totalizer carriage connected to move with said typewriter carriage, an elongated clamp mounted on said totalizcr carriage, to clamp either one or more totalizers adjustably mounted along said totalizer carriage, said clamp comprising a pair of jaws, each of said totalizers having a groove A riage, of a totalizer carriage connected to riage, to clamp either one or more total izers adjustably mounted along said totalizer carriage, said clamp comprising a pair of jaws, each of said totalizers having a roove therein, means for spreading said.

aws to grip the sides of said groove, and means for moving said jaws toward each" other. I

6. The combination with a typewriter carriage, of a] totalizer carriage connected to move with said typewriter carriage, an elongated clamp mounted on said totalizer carriage, .one or more totalizers adjustably mounted along said totalizer carriage and secured thereto by said clamp, said clamp comprising a fixed jaw and a movable jaw, a spring tending to move said movable jaw toward said fixed jaw, and a cam for moving said movable jaw away from said fixed jaw.

7. The combination with a typewriter carriage, of a totalizer carriage connected to move with said typewriter carriage, an elon- I gated clamp mounted on said totalizer carrlage, one or more totalizers adjustably mounted along said totalizer carriage and secured thereto by said clamp, said clamp I comprising a fixed jaw and a movable jaw,-

said movable jaw having an inclined pin and slot connection with said totalizer carriage, so that a longltudinal movement of said movable jaw will cause a transverse movement thereof, and means for moving said movable jaw. v i

8. The combination with a typewriter carmove with said typewriter carriage, an

elongated clamp mounted on said totalizer .carriage,'one or more totalizers adjustably mounted along said totalizer carriage and secured thereto by said clamp,.said clamp comprising a fixed jaw and a-movable jaw, said movable jaw having an inclined pin and slot connection with said totalizer carriage, so that a longitudinal movement of said movable jaw will cause a transverse movement thereof, a spring connected to said movable jaw at one end and to said totalizer carriage at its other end, and a cam lever engaging the end of said movable jaw so as to be capable of moving said movable jaw against the tension of said spring.

'9. The combination with a typewritercarriage, of a sub-carriage connected to move with said typewriter carriage, a guide for: said sub-carriage, rails on said sub-carriage engaging-said guide, an adjustable totalizer connectible to move with said sub-carriage and with said typewriter carriage, said totalizer having a groove therein with top and bottomrecessed portions, and an elongated clamp mounted on said sub-carriage 1 and spreadable in said groove to secure said totalizer to said sub-carriage, at any ad justment of said totalizer.

10. The combination with a typewriter carriage, of a sub-carriage connected to move with said typewriter carriage, projecting angle rails on said sub-carriage, a fixed guide having projecting portions interlocking with said angle rails to form ways so as to permit a longitudinal movement of said sub-carriage with said typewriter carriage and prevent transverse and vertical movements thereof, a totalizer adjustably connected to said sub-carriage, and means for securing said totalizer to said sub-carriage. V

11. The ,combination with a typewriter carriage, of a totalizer carriage connected to said typewriter carriage, one or more totalizers, and an elongated clamp on said totalizer carriage arranged to directly receive atotalizer at any letter-space interval along the typewriter carriage.

12. The combination with a typewriter carriage, of a totalizer carriage connected to and traveling concomitantly with said typewriter carriage, one or more totalizers, and a clamping connection having a part extending the entire length of said totalizer carriage enabling the direct snapping on of a totalizer to correspond with any letterspace interval of said typewriter carriage.

13. The combination with a totalizer and a support, of a fixed bar forming a part of said support on which the totalizer may be caught by direct application thereto, and along which the totalizer may be adjusted, and a second movable bar extending along the first and adapted to loe moved to engage and hold the totalizer to said support.

14. The combination with a totalizer com-- prising hooked members, which the totalizer may bar forming part of said support, and adapted to be engaged by said hooked members to catch the totalizer, and a second bar extending along and movable on said support adapted to be moved to position to engage other of said hooked members and lock the totalizer thereby; said bar also movable to a position to permit the totalizer to be applied and adjusted to the support at the desired position freely and then moyable to an effective position to hold-said totalizer.

15. The combination with a totalizer and a support along which the totalizer is adjustable, of a fixed bar forming a part of said support on which the totalizer may be caught by direct application thereto, and a second movable bar extending along the first and adapted to hold the totalizer to said support. I

16. The combination with a totalizer combe adjusted, a fixed of a support along prisin hooked members, of a support, a fixed ar forming a part of said support adapted to engage certain of said hooked members to catch the totalizer, and a second bar movable on said support adapted to be moved to position to engage other of said hooked members and lock the totalizer thereby; said bar also movable to a position to permit the totalizer to be adjusted to the support at the desired position freely, and then movable to an effective position to hold said totalizer.

17. The combination with a totalizer and a support therefor, of two bars on said support forming clamping members, engaging members on said totalizer to-cooperate with said clamps, and a cam for moving one of said clamps to effective position to lock the totalizer in place.

18. The combination with a totalizer and a support, of two bars on said support, one of said bars being fixed, engaging members on the totalizer for engaging said bars, and means for moving one bar from a position completely out of the way of said engaging members and also moving it to a position to engage said members and lock the totalizer to the support.

19. The combination with a totalizer and a support, of extensions on said totalizer having inclined faces, a fixed bar, said support having a face cooperating with one of said inclined faces, a movable bar on said support having a face cooperating with another of said inclined faces, said 'movable bar settable at a position clear of the totalizer extensions to allow the-totalizer to be applied and adjusted to the support, and a lock for setting saidmovable bar at a position to lock the totalizer to said support.

20. The combination with a totalizer and a support, of extensions on said totalizer having inclined faces, a fixed bar, said support having a face cooperating with one of said inclined faces, a movable bar on said support having a face cooperating with another of said inclined faces, said movable bar settable at a position clear of the totalizer extensionsto allow the totalizer to be applied and adjusted to the support, a spring normally tensioning said movable bar in ineffective position, and a lever cam for shift-- ing said bar to effective position and looking it there.

21. In a computing machine, the combination with a totalizer and a su )port therefor, of hooks on said totalizer, a bar adapted to be engaged by certain of said hooks, a second bar adapted to be engaged by others of said hooks, means for moving one of said bars parallel to the other and into and out of engaging position with its cooperating hooks on the totalizer to lock the totalizer, pins on one of said bars adapted to cooperate with slots inclined thereto for guiding it into and out of effective position, and a handle for moving said bar transversely of said slots to so release or engage said totalizer.

23. In a computing machine, the combination with a totalizer comprising hooks, of two bars, each adapted to engage certain of said hooks, studs on one of said bars adaptedto cooperate with diagonal slots for moving said last-named bar into and out of cooperation with its hooks, a rack cooperating with said totalizer adapted to prevent transverse movement thereof when the bar is moved on its studs, a spring normally holding said bar in its ineffective position, and a cam handle adapted to move said bar to its effective position and lock it there.

24. The combination with a typewriter carriage, of a sub-carriage connected thereto, and a single elongated clamp on said sub.- carriage, to clamp either one or more detachable totalizers or computing heads mounted on said sub-carriage, said clamp being arranged to lock to or release from said carriage all totalizer-s that may be mounted thereon.

25. The combination with a typewriter carriage having means for carrying one or more adjustable totalizers, of means for limiting the positions of said totalizers to points located at predetern'lined letter-space intervals from each other, and universal means for locking either one or more of said totalizers in their adjusted positions relative to said carriage.

WALTER WRIGHT.

Witnesses:

TITUS H. IRONS, F. E. ALEXANDER. 

